Design of dual-function soil amendment via co-roasting K-feldspar with soda residue and oyster shell for acidity amelioration and potassium supply - Ernest Uwiringiyimana; Ren-Yong Shi; Jiu-Yu Li; Jia-Ning Gao; Yong-Ming Fu; Md. Romel Biswash; Cong-Ming Wu; Ren-Kou Xu (Journal of Environmental Chemical Engineering, 2026)